Hello,
I have overheating problem on my Jazz that seems non-standard and the car services toke from me a bucket of money and cannot find what's on.
The problem arise only only when I'm on motorway, above 3000 RPMs and especially when climbing hill for more than few mins (when the load on the engine is higher for 5-7 mins).
On the motorway I have attached OBD2 and monitoring the engine coolant temperature with Torque lite app it shows temperature is range 105 - 115 degrees, Celsius, when reach to 118 immediately the red lamp for overheating start blinking and I release the gas pedal. This happens with and without the AC on.
So far in the car service they've changed the coolant liquid, radiator cap, coolant temperature sensor, water pump and thermostat and the problem persists.
I have read that there is cooling fan switch that may cause a such problem, but don't know if a such exist on my car (I've found only records for i-DSI engines on Jazz up to 2008, but nothing for 2010 IVTEC )
Do you have any idea for the cooling fan switch or maybe what may be causing my problem?
p.s. more than 10k km in the city this issue never appear, happens only on higher speeds on motorways